1. Clean and cut fish into slices.
2. Fry onion in oil
3. Roast coriander seeds red chilles cumin gingelly (till) and grated coconut.
4. Grind masala with the onion to a thick paste.
5. Soak tamrind in hot water. Squeeze out pulp.
6. Heat oil. Add ground paste.
7. Remove pan from fire add ground paste.
8. Return to fire fry well.
9. Add tamrind pulp and salt. Cook for 10minutes.
10. Add sliced piece of fish.
11. Cook till fish is done.
12. Serve garnished with chopped coriander leaves.